Our Company & People

Andover Organ Company :: Our Company & People
Current and former Andover employees at our 50th Anniversary Reunion in 1998

Andover Organ Company is a group of dedicated artisans who build and restore mechanical action pipe organs. We have built 118 new organs and rebuilt or restored over 550 older instruments. Examples of our work can be found throughout the United States.

Founded in 1948, as the result of the Organ Reform Movement, Andover has played a pivotal role in the preservation of 19th Century American organs and in the construction of historically informed new instruments which inspire players and listeners. In 1959 Andover built one of the first new tracker organs by a US firm since the 1930s. In 1964 we carried out the world's first re-trackerization of an electrified tracker organ.

Along with building, rebuilding and restorations, we maintain over 300 organs throughout the Northeast, Mid-Atlantic and Southeast - including some of this country’s most historic instruments. With 75 years of experience, we have a reputation for quality work and meticulous craftsmanship.

Andover is a member of the International Society of Organbuilders (ISO) and the Associated Pipe Organ Builders of America (APOBA.) Our principal employees are members of the American Institute of Organbuilders (AIO) and the Organ Historical Society (OHS).

The Board

Ryan M. Bartosiewicz, President
Craig Seaman, Treasurer
Michael W. Eaton, Clerk
Matthew Bellocchio
John Morlock
Felicia Morlock
Robert C. Newton
Jonathan Ross

Staff Profiles

Ryan Bartosiewicz
After assisting us on installations and tunings for several years, Ryan joined Andover full-time in 2012. He has worked on significant Andover restoration projects - Round Lake, NY; Haverstraw, NY; Great Barrington, MA; Charlestown, MA; Nantucket, MA – as well as Andover Opus 118 in Wayland, MA. A skilled tuner and voicer, he has headed Andover’s organ maintenance teams for all the New England states, as well as the Southern States and Upstate New York. Ryan is Music Director/Organist at St. George’s Episcopal Church in Durham, NH. He received a BA in Music from Gettysburg College, where he studied organ with Josephine Bailey Freund. He was awarded an Organ Historical Society (OHS) E. Power Biggs Fellowship in 2011 and an American Institute of Organbuilders (AIO) Convention Scholarship in 2013.

Matthew Bellocchio
Matthew joined Andover in 2003, after having spent 28 years working at other organ companies. He holds a BA degree from St. Francis College, studied architecture at Pratt Institute and served as a church organist in New York and Massachusetts. He has studied historic organs and architecture in America, England, Europe, and Mexico and has lectured on and published articles about organ history and technology. At Andover, he does technical engineering and works on publicity and sales. Matthew is a charter member and Fellow of the American Institute of Organbuilders (AIO). He served on the AIO Board of Directors and as AIO President (2012-2015). A Trustee of the Methuen Memorial Music Hall since 2017, Matthew currently serves as its President.

Helen Casey
Helen joined Andover in Spring 2022 and serves as our Business Manager, Maintenance Coordinator, and HR person. She received an associate degree in accounting from the Community College of Rhode Island and a bachelor’s degree in business management from the University of Rhode Island. After living in California for 10 years, she relocated in 2013 to Boston, where she operated her own Accounting Services business, working as an accountant and consultant for small and family businesses. In 2022, she downsized her company and moved to the more peaceful environment of the North Shore to become our office manager.

Michael W. Eaton
Michael joined the staff at Andover in 1991. He is our resident AutoCAD designer and leads one of our tuning and maintenance teams. Michael specializes in slider windchests and mechanical key actions. He also serves as Clerk for Andover's Board of Directors. He holds a Bachelor of Music degree in Organ Performance from New England Conservatory, where he studied with Yuko Hayashi and William Porter. Michael has served as a church musician for nearly 40 years in Massachusetts, New Hampshire, and North Carolina. He is currently Organist at the historic Church of the Pilgrimage in Plymouth, MA. Michael lives in Weymouth, MA with his wife Katherine and their children Mary and William.

Bejamin Hanson
Ben joined Andover in March 2021 as an apprentice. He currently specializes in the releathering of reservoirs, windchest pneumatics, and wood pipe stoppers. He is also learning many other facets of our craft, including the restoration and repair of 19th century slider windchests. Ben received a Bachelor of Music degree from UMass Lowell in 2020 and has played double bass in classical ensembles and electric bass in rock bands.

Jonathan Ross
Jon joined Andover in January 2003, after majoring in Ancient History at Tufts University. He has had a fascination with musical instruments since early childhood. He became very active in the harmonica community, learning to repair and work on the mouth organ while networking with others in that field. This led him to consider making musical instruments and to take the leap from the humble mouth organ to the grand pipe organ. Jon finds working on the many historic 19th century organs Andover maintains and restores especially rewarding, as it incorporates his two great passions of history and music. He specializes in repairing old pipes and preparing new ones for voicing, as well as working in sales and heading one of our maintenance teams. Jon currently serves as President of APOBA (Association of American Pipe Organ Builders), of which Andover is a member firm.

Craig A. Seaman
Craig came to Andover in 1994. A native of the Oregon coast, Craig received a Bachelor of Music degree in Organ Performance from Oberlin College. After working in electronics manufacturing and receiving a Master of Science in Electronics Engineering from Boston University, he decided to pursue his love of music, and joined Andover. In addition to being General Manager, he specializes in electrical systems design and wiring, and heads one of our maintenance teams. Craig and his wife, Cathie, and their two children live in Tewksbury, MA. He is Organist/Music Director at St. Andrew’s Episcopal Church in Methuen, MA and for several years served as treasurer for the Merrimack Valley Chapter of the AGO.

Vincent Treanor III
Vince became fascinated with the organ at age 15 and trained for seven years with several Massachusetts organ builders and service companies. From 1967 to 1972, he took a hiatus from organbuilding to serve as road manager for the famous rock band, The Doors. He then moved to Los Angeles, setting up, tuning, and maintaining rental harpsichords and portative organs. On a 1999 visit to South Korea, he found that many of the organs there were out of tune or had serious mechanical problems. He established the first fully equipped pipe organ company in Korea and trained eight Koreans in the art of organ building. During the COVID-19 pandemic he closed his organ company and returned home to Massachusetts, where he joined Andover in 2022. He specializes in problem solving and building almost any needed organ part from scratch.

David Zarges
David joined our team of skilled craftsmen in 2000. He has experience as a cabinet maker, building custom wooden furniture, as a model maker for Seth Thomas Grandfather Clocks, and as a pattern maker for ferrous metal castings. Prior to his arrival at Andover, David worked for ten years as an organbuilder with Bozeman Organ Co. David’s responsibilities at Andover include casework, wind chests, consoles, and wood pipe construction. David and his wife, Debbie, live in NH and have three grown children and one grandson. In his leisure time, David enjoys woodcarving, hiking, camping, canoeing, visiting the White Mountains, and gardening.